Home / 6,854.19-9,459.62-3,870.15

Finding the Fourth Proportional to 6,854.19, 9,459.62 and 3,870.15

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Solution

The fourth proportional to 6,854.19, 9,459.62 and 3,870.15 is: 5,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,854.19 : 9,459.62 = 3,870.15 : x
  2. Step 2: Convert to fraction form
    6,854.19/9,459.62 = 3,870.15/x
  3. Step 3: Cross multiply
    6,854.19x = 9,459.62 × 3,870.15
  4. Step 4: Simplify right side
    6,854.19x = 36,610,148.34
  5. Step 5: Solve for x
    x = 36,610,148.34/6,854.19
  6. Step 6: Final answer
    x = 5,341.28

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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.