Home / 7,748.69-10,691.42-4,390.74

Finding the Fourth Proportional to 7,748.69, 10,691.42 and 4,390.74

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Solution

The fourth proportional to 7,748.69, 10,691.42 and 4,390.74 is: 6,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.69 : 10,691.42 = 4,390.74 : x
  2. Step 2: Convert to fraction form
    7,748.69/10,691.42 = 4,390.74/x
  3. Step 3: Cross multiply
    7,748.69x = 10,691.42 × 4,390.74
  4. Step 4: Simplify right side
    7,748.69x = 46,943,223.50
  5. Step 5: Solve for x
    x = 46,943,223.50/7,748.69
  6. Step 6: Final answer
    x = 6,058.22

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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.