Home / 5,669.40-8,488.13-4,278.32

Finding the Fourth Proportional to 5,669.40, 8,488.13 and 4,278.32

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Solution

The fourth proportional to 5,669.40, 8,488.13 and 4,278.32 is: 6,405.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.40 : 8,488.13 = 4,278.32 : x
  2. Step 2: Convert to fraction form
    5,669.40/8,488.13 = 4,278.32/x
  3. Step 3: Cross multiply
    5,669.40x = 8,488.13 × 4,278.32
  4. Step 4: Simplify right side
    5,669.40x = 36,314,872.51
  5. Step 5: Solve for x
    x = 36,314,872.51/5,669.40
  6. Step 6: Final answer
    x = 6,405.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.