Home / 4,750.46-7,125.66-1,287.68

Finding the Fourth Proportional to 4,750.46, 7,125.66 and 1,287.68

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Solution

The fourth proportional to 4,750.46, 7,125.66 and 1,287.68 is: 1,931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.46 : 7,125.66 = 1,287.68 : x
  2. Step 2: Convert to fraction form
    4,750.46/7,125.66 = 1,287.68/x
  3. Step 3: Cross multiply
    4,750.46x = 7,125.66 × 1,287.68
  4. Step 4: Simplify right side
    4,750.46x = 9,175,569.87
  5. Step 5: Solve for x
    x = 9,175,569.87/4,750.46
  6. Step 6: Final answer
    x = 1,931.51

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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.