Home / 3,117.16-4,301.54-1,790.76

Finding the Fourth Proportional to 3,117.16, 4,301.54 and 1,790.76

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Solution

The fourth proportional to 3,117.16, 4,301.54 and 1,790.76 is: 2,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.16 : 4,301.54 = 1,790.76 : x
  2. Step 2: Convert to fraction form
    3,117.16/4,301.54 = 1,790.76/x
  3. Step 3: Cross multiply
    3,117.16x = 4,301.54 × 1,790.76
  4. Step 4: Simplify right side
    3,117.16x = 7,703,025.77
  5. Step 5: Solve for x
    x = 7,703,025.77/3,117.16
  6. Step 6: Final answer
    x = 2,471.17

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Half scale
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Double scale
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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.