Home / 1,547.24-2,134.49-883.85

Finding the Fourth Proportional to 1,547.24, 2,134.49 and 883.85

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Solution

The fourth proportional to 1,547.24, 2,134.49 and 883.85 is: 1,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547.24 : 2,134.49 = 883.85 : x
  2. Step 2: Convert to fraction form
    1,547.24/2,134.49 = 883.85/x
  3. Step 3: Cross multiply
    1,547.24x = 2,134.49 × 883.85
  4. Step 4: Simplify right side
    1,547.24x = 1,886,553.89
  5. Step 5: Solve for x
    x = 1,886,553.89/1,547.24
  6. Step 6: Final answer
    x = 1,219.31

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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.