Home / 1,423.01-2,129.88-1,226.18

Finding the Fourth Proportional to 1,423.01, 2,129.88 and 1,226.18

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Solution

The fourth proportional to 1,423.01, 2,129.88 and 1,226.18 is: 1,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.01 : 2,129.88 = 1,226.18 : x
  2. Step 2: Convert to fraction form
    1,423.01/2,129.88 = 1,226.18/x
  3. Step 3: Cross multiply
    1,423.01x = 2,129.88 × 1,226.18
  4. Step 4: Simplify right side
    1,423.01x = 2,611,605.61
  5. Step 5: Solve for x
    x = 2,611,605.61/1,423.01
  6. Step 6: Final answer
    x = 1,835.28

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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.