Home / 5,779.30-7,973.85-3,681.70

Finding the Fourth Proportional to 5,779.30, 7,973.85 and 3,681.70

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Solution

The fourth proportional to 5,779.30, 7,973.85 and 3,681.70 is: 5,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.30 : 7,973.85 = 3,681.70 : x
  2. Step 2: Convert to fraction form
    5,779.30/7,973.85 = 3,681.70/x
  3. Step 3: Cross multiply
    5,779.30x = 7,973.85 × 3,681.70
  4. Step 4: Simplify right side
    5,779.30x = 29,357,323.55
  5. Step 5: Solve for x
    x = 29,357,323.55/5,779.30
  6. Step 6: Final answer
    x = 5,079.74

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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.