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Finding the Fourth Proportional to 2,750.47, 4,124.06 and 875.55

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Solution

The fourth proportional to 2,750.47, 4,124.06 and 875.55 is: 1,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.47 : 4,124.06 = 875.55 : x
  2. Step 2: Convert to fraction form
    2,750.47/4,124.06 = 875.55/x
  3. Step 3: Cross multiply
    2,750.47x = 4,124.06 × 875.55
  4. Step 4: Simplify right side
    2,750.47x = 3,610,818.00
  5. Step 5: Solve for x
    x = 3,610,818.00/2,750.47
  6. Step 6: Final answer
    x = 1,312.80

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1.5x scale

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.