Home / 1,487.08-2,054.82-1,140.76

Finding the Fourth Proportional to 1,487.08, 2,054.82 and 1,140.76

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Solution

The fourth proportional to 1,487.08, 2,054.82 and 1,140.76 is: 1,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.08 : 2,054.82 = 1,140.76 : x
  2. Step 2: Convert to fraction form
    1,487.08/2,054.82 = 1,140.76/x
  3. Step 3: Cross multiply
    1,487.08x = 2,054.82 × 1,140.76
  4. Step 4: Simplify right side
    1,487.08x = 2,344,056.46
  5. Step 5: Solve for x
    x = 2,344,056.46/1,487.08
  6. Step 6: Final answer
    x = 1,576.28

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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.