Home / 7,531.80-10,392.87-4,345.21

Finding the Fourth Proportional to 7,531.80, 10,392.87 and 4,345.21

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Solution

The fourth proportional to 7,531.80, 10,392.87 and 4,345.21 is: 5,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,531.80 : 10,392.87 = 4,345.21 : x
  2. Step 2: Convert to fraction form
    7,531.80/10,392.87 = 4,345.21/x
  3. Step 3: Cross multiply
    7,531.80x = 10,392.87 × 4,345.21
  4. Step 4: Simplify right side
    7,531.80x = 45,159,202.65
  5. Step 5: Solve for x
    x = 45,159,202.65/7,531.80
  6. Step 6: Final answer
    x = 5,995.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.