Home / 1,726.77-2,383.23-981.17

Finding the Fourth Proportional to 1,726.77, 2,383.23 and 981.17

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Solution

The fourth proportional to 1,726.77, 2,383.23 and 981.17 is: 1,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,726.77 : 2,383.23 = 981.17 : x
  2. Step 2: Convert to fraction form
    1,726.77/2,383.23 = 981.17/x
  3. Step 3: Cross multiply
    1,726.77x = 2,383.23 × 981.17
  4. Step 4: Simplify right side
    1,726.77x = 2,338,353.78
  5. Step 5: Solve for x
    x = 2,338,353.78/1,726.77
  6. Step 6: Final answer
    x = 1,354.18

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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.