Home / 4,750.49-7,125.73-1,287.74

Finding the Fourth Proportional to 4,750.49, 7,125.73 and 1,287.74

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Solution

The fourth proportional to 4,750.49, 7,125.73 and 1,287.74 is: 1,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.49 : 7,125.73 = 1,287.74 : x
  2. Step 2: Convert to fraction form
    4,750.49/7,125.73 = 1,287.74/x
  3. Step 3: Cross multiply
    4,750.49x = 7,125.73 × 1,287.74
  4. Step 4: Simplify right side
    4,750.49x = 9,176,045.48
  5. Step 5: Solve for x
    x = 9,176,045.48/4,750.49
  6. Step 6: Final answer
    x = 1,931.60

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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.