Home / 1,760.77-2,429.61-974.87

Finding the Fourth Proportional to 1,760.77, 2,429.61 and 974.87

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Solution

The fourth proportional to 1,760.77, 2,429.61 and 974.87 is: 1,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.77 : 2,429.61 = 974.87 : x
  2. Step 2: Convert to fraction form
    1,760.77/2,429.61 = 974.87/x
  3. Step 3: Cross multiply
    1,760.77x = 2,429.61 × 974.87
  4. Step 4: Simplify right side
    1,760.77x = 2,368,541.75
  5. Step 5: Solve for x
    x = 2,368,541.75/1,760.77
  6. Step 6: Final answer
    x = 1,345.18

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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.