Home / 5,870.77-8,102.18-3,218.69

Finding the Fourth Proportional to 5,870.77, 8,102.18 and 3,218.69

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Solution

The fourth proportional to 5,870.77, 8,102.18 and 3,218.69 is: 4,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.77 : 8,102.18 = 3,218.69 : x
  2. Step 2: Convert to fraction form
    5,870.77/8,102.18 = 3,218.69/x
  3. Step 3: Cross multiply
    5,870.77x = 8,102.18 × 3,218.69
  4. Step 4: Simplify right side
    5,870.77x = 26,078,405.74
  5. Step 5: Solve for x
    x = 26,078,405.74/5,870.77
  6. Step 6: Final answer
    x = 4,442.08

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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.