Home / 1,779.49-2,456.76-1,116.91

Finding the Fourth Proportional to 1,779.49, 2,456.76 and 1,116.91

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Solution

The fourth proportional to 1,779.49, 2,456.76 and 1,116.91 is: 1,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.49 : 2,456.76 = 1,116.91 : x
  2. Step 2: Convert to fraction form
    1,779.49/2,456.76 = 1,116.91/x
  3. Step 3: Cross multiply
    1,779.49x = 2,456.76 × 1,116.91
  4. Step 4: Simplify right side
    1,779.49x = 2,743,979.81
  5. Step 5: Solve for x
    x = 2,743,979.81/1,779.49
  6. Step 6: Final answer
    x = 1,542.00

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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.