Home / 5,250.20-7,875.29-1,787.45

Finding the Fourth Proportional to 5,250.20, 7,875.29 and 1,787.45

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Solution

The fourth proportional to 5,250.20, 7,875.29 and 1,787.45 is: 2,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.20 : 7,875.29 = 1,787.45 : x
  2. Step 2: Convert to fraction form
    5,250.20/7,875.29 = 1,787.45/x
  3. Step 3: Cross multiply
    5,250.20x = 7,875.29 × 1,787.45
  4. Step 4: Simplify right side
    5,250.20x = 14,076,638.80
  5. Step 5: Solve for x
    x = 14,076,638.80/5,250.20
  6. Step 6: Final answer
    x = 2,681.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.