Home / 1,746.55-2,411.40-1,215.28

Finding the Fourth Proportional to 1,746.55, 2,411.40 and 1,215.28

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Solution

The fourth proportional to 1,746.55, 2,411.40 and 1,215.28 is: 1,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,746.55 : 2,411.40 = 1,215.28 : x
  2. Step 2: Convert to fraction form
    1,746.55/2,411.40 = 1,215.28/x
  3. Step 3: Cross multiply
    1,746.55x = 2,411.40 × 1,215.28
  4. Step 4: Simplify right side
    1,746.55x = 2,930,526.19
  5. Step 5: Solve for x
    x = 2,930,526.19/1,746.55
  6. Step 6: Final answer
    x = 1,677.89

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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.