Home / 2,387.80-3,295.07-1,325.55

Finding the Fourth Proportional to 2,387.80, 3,295.07 and 1,325.55

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Solution

The fourth proportional to 2,387.80, 3,295.07 and 1,325.55 is: 1,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.80 : 3,295.07 = 1,325.55 : x
  2. Step 2: Convert to fraction form
    2,387.80/3,295.07 = 1,325.55/x
  3. Step 3: Cross multiply
    2,387.80x = 3,295.07 × 1,325.55
  4. Step 4: Simplify right side
    2,387.80x = 4,367,798.19
  5. Step 5: Solve for x
    x = 4,367,798.19/2,387.80
  6. Step 6: Final answer
    x = 1,829.21

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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.