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Finding the Fourth Proportional to 1,751.77, 2,417.52 and 1,005.76

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Solution

The fourth proportional to 1,751.77, 2,417.52 and 1,005.76 is: 1,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.77 : 2,417.52 = 1,005.76 : x
  2. Step 2: Convert to fraction form
    1,751.77/2,417.52 = 1,005.76/x
  3. Step 3: Cross multiply
    1,751.77x = 2,417.52 × 1,005.76
  4. Step 4: Simplify right side
    1,751.77x = 2,431,444.92
  5. Step 5: Solve for x
    x = 2,431,444.92/1,751.77
  6. Step 6: Final answer
    x = 1,387.99

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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.