Home / 1,715.59-2,367.51-929.65

Finding the Fourth Proportional to 1,715.59, 2,367.51 and 929.65

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Solution

The fourth proportional to 1,715.59, 2,367.51 and 929.65 is: 1,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.59 : 2,367.51 = 929.65 : x
  2. Step 2: Convert to fraction form
    1,715.59/2,367.51 = 929.65/x
  3. Step 3: Cross multiply
    1,715.59x = 2,367.51 × 929.65
  4. Step 4: Simplify right side
    1,715.59x = 2,200,955.67
  5. Step 5: Solve for x
    x = 2,200,955.67/1,715.59
  6. Step 6: Final answer
    x = 1,282.91

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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.