Home / 4,689.77-7,034.51-1,915.65

Finding the Fourth Proportional to 4,689.77, 7,034.51 and 1,915.65

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Solution

The fourth proportional to 4,689.77, 7,034.51 and 1,915.65 is: 2,873.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.77 : 7,034.51 = 1,915.65 : x
  2. Step 2: Convert to fraction form
    4,689.77/7,034.51 = 1,915.65/x
  3. Step 3: Cross multiply
    4,689.77x = 7,034.51 × 1,915.65
  4. Step 4: Simplify right side
    4,689.77x = 13,475,663.87
  5. Step 5: Solve for x
    x = 13,475,663.87/4,689.77
  6. Step 6: Final answer
    x = 2,873.42

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1.5x scale

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.