Home / 5,830.61-8,045.95-3,178.00

Finding the Fourth Proportional to 5,830.61, 8,045.95 and 3,178.00

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Solution

The fourth proportional to 5,830.61, 8,045.95 and 3,178.00 is: 4,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,830.61 : 8,045.95 = 3,178.00 : x
  2. Step 2: Convert to fraction form
    5,830.61/8,045.95 = 3,178.00/x
  3. Step 3: Cross multiply
    5,830.61x = 8,045.95 × 3,178.00
  4. Step 4: Simplify right side
    5,830.61x = 25,570,001.04
  5. Step 5: Solve for x
    x = 25,570,001.04/5,830.61
  6. Step 6: Final answer
    x = 4,385.47

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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.