Home / 1,518.57-2,095.67-929.43

Finding the Fourth Proportional to 1,518.57, 2,095.67 and 929.43

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Solution

The fourth proportional to 1,518.57, 2,095.67 and 929.43 is: 1,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518.57 : 2,095.67 = 929.43 : x
  2. Step 2: Convert to fraction form
    1,518.57/2,095.67 = 929.43/x
  3. Step 3: Cross multiply
    1,518.57x = 2,095.67 × 929.43
  4. Step 4: Simplify right side
    1,518.57x = 1,947,773.92
  5. Step 5: Solve for x
    x = 1,947,773.92/1,518.57
  6. Step 6: Final answer
    x = 1,282.64

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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.