Home / 2,071.68-2,858.88-1,140.16

Finding the Fourth Proportional to 2,071.68, 2,858.88 and 1,140.16

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Solution

The fourth proportional to 2,071.68, 2,858.88 and 1,140.16 is: 1,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.68 : 2,858.88 = 1,140.16 : x
  2. Step 2: Convert to fraction form
    2,071.68/2,858.88 = 1,140.16/x
  3. Step 3: Cross multiply
    2,071.68x = 2,858.88 × 1,140.16
  4. Step 4: Simplify right side
    2,071.68x = 3,259,580.62
  5. Step 5: Solve for x
    x = 3,259,580.62/2,071.68
  6. Step 6: Final answer
    x = 1,573.40

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.