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Finding the Fourth Proportional to 1,710.05, 2,565.07 and 411.51

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Solution

The fourth proportional to 1,710.05, 2,565.07 and 411.51 is: 617.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.05 : 2,565.07 = 411.51 : x
  2. Step 2: Convert to fraction form
    1,710.05/2,565.07 = 411.51/x
  3. Step 3: Cross multiply
    1,710.05x = 2,565.07 × 411.51
  4. Step 4: Simplify right side
    1,710.05x = 1,055,549.90
  5. Step 5: Solve for x
    x = 1,055,549.90/1,710.05
  6. Step 6: Final answer
    x = 617.26

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Double scale
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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.