Home / 2,071.54-2,858.65-1,140.02

Finding the Fourth Proportional to 2,071.54, 2,858.65 and 1,140.02

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Solution

The fourth proportional to 2,071.54, 2,858.65 and 1,140.02 is: 1,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.54 : 2,858.65 = 1,140.02 : x
  2. Step 2: Convert to fraction form
    2,071.54/2,858.65 = 1,140.02/x
  3. Step 3: Cross multiply
    2,071.54x = 2,858.65 × 1,140.02
  4. Step 4: Simplify right side
    2,071.54x = 3,258,918.17
  5. Step 5: Solve for x
    x = 3,258,918.17/2,071.54
  6. Step 6: Final answer
    x = 1,573.19

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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.