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Finding the Fourth Proportional to 5,007.88, 7,510.65 and 1,888.20

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Solution

The fourth proportional to 5,007.88, 7,510.65 and 1,888.20 is: 2,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.88 : 7,510.65 = 1,888.20 : x
  2. Step 2: Convert to fraction form
    5,007.88/7,510.65 = 1,888.20/x
  3. Step 3: Cross multiply
    5,007.88x = 7,510.65 × 1,888.20
  4. Step 4: Simplify right side
    5,007.88x = 14,181,571.78
  5. Step 5: Solve for x
    x = 14,181,571.78/5,007.88
  6. Step 6: Final answer
    x = 2,831.85

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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.