Home / 2,487.33-3,432.59-1,368.21

Finding the Fourth Proportional to 2,487.33, 3,432.59 and 1,368.21

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Solution

The fourth proportional to 2,487.33, 3,432.59 and 1,368.21 is: 1,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.33 : 3,432.59 = 1,368.21 : x
  2. Step 2: Convert to fraction form
    2,487.33/3,432.59 = 1,368.21/x
  3. Step 3: Cross multiply
    2,487.33x = 3,432.59 × 1,368.21
  4. Step 4: Simplify right side
    2,487.33x = 4,696,497.12
  5. Step 5: Solve for x
    x = 4,696,497.12/2,487.33
  6. Step 6: Final answer
    x = 1,888.17

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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.