Home / 2,487.61-3,429.02-1,857.23

Finding the Fourth Proportional to 2,487.61, 3,429.02 and 1,857.23

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Solution

The fourth proportional to 2,487.61, 3,429.02 and 1,857.23 is: 2,560.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.61 : 3,429.02 = 1,857.23 : x
  2. Step 2: Convert to fraction form
    2,487.61/3,429.02 = 1,857.23/x
  3. Step 3: Cross multiply
    2,487.61x = 3,429.02 × 1,857.23
  4. Step 4: Simplify right side
    2,487.61x = 6,368,452.38
  5. Step 5: Solve for x
    x = 6,368,452.38/2,487.61
  6. Step 6: Final answer
    x = 2,560.07

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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.