Home / 6,988.08-9,643.72-3,801.55

Finding the Fourth Proportional to 6,988.08, 9,643.72 and 3,801.55

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Solution

The fourth proportional to 6,988.08, 9,643.72 and 3,801.55 is: 5,246.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.08 : 9,643.72 = 3,801.55 : x
  2. Step 2: Convert to fraction form
    6,988.08/9,643.72 = 3,801.55/x
  3. Step 3: Cross multiply
    6,988.08x = 9,643.72 × 3,801.55
  4. Step 4: Simplify right side
    6,988.08x = 36,661,113.18
  5. Step 5: Solve for x
    x = 36,661,113.18/6,988.08
  6. Step 6: Final answer
    x = 5,246.24

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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.