Home / 4,290.12-6,436.18-1,368.20

Finding the Fourth Proportional to 4,290.12, 6,436.18 and 1,368.20

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Solution

The fourth proportional to 4,290.12, 6,436.18 and 1,368.20 is: 2,052.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.12 : 6,436.18 = 1,368.20 : x
  2. Step 2: Convert to fraction form
    4,290.12/6,436.18 = 1,368.20/x
  3. Step 3: Cross multiply
    4,290.12x = 6,436.18 × 1,368.20
  4. Step 4: Simplify right side
    4,290.12x = 8,805,981.48
  5. Step 5: Solve for x
    x = 8,805,981.48/4,290.12
  6. Step 6: Final answer
    x = 2,052.62

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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.