Home / 1,715.60-2,367.52-929.64

Finding the Fourth Proportional to 1,715.60, 2,367.52 and 929.64

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Solution

The fourth proportional to 1,715.60, 2,367.52 and 929.64 is: 1,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.60 : 2,367.52 = 929.64 : x
  2. Step 2: Convert to fraction form
    1,715.60/2,367.52 = 929.64/x
  3. Step 3: Cross multiply
    1,715.60x = 2,367.52 × 929.64
  4. Step 4: Simplify right side
    1,715.60x = 2,200,941.29
  5. Step 5: Solve for x
    x = 2,200,941.29/1,715.60
  6. Step 6: Final answer
    x = 1,282.90

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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.