Home / 1,555.95-2,332.50-1,008.39

Finding the Fourth Proportional to 1,555.95, 2,332.50 and 1,008.39

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Solution

The fourth proportional to 1,555.95, 2,332.50 and 1,008.39 is: 1,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.95 : 2,332.50 = 1,008.39 : x
  2. Step 2: Convert to fraction form
    1,555.95/2,332.50 = 1,008.39/x
  3. Step 3: Cross multiply
    1,555.95x = 2,332.50 × 1,008.39
  4. Step 4: Simplify right side
    1,555.95x = 2,352,069.68
  5. Step 5: Solve for x
    x = 2,352,069.68/1,555.95
  6. Step 6: Final answer
    x = 1,511.66

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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.