Home / 2,306.20-3,182.90-1,312.06

Finding the Fourth Proportional to 2,306.20, 3,182.90 and 1,312.06

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Solution

The fourth proportional to 2,306.20, 3,182.90 and 1,312.06 is: 1,810.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.20 : 3,182.90 = 1,312.06 : x
  2. Step 2: Convert to fraction form
    2,306.20/3,182.90 = 1,312.06/x
  3. Step 3: Cross multiply
    2,306.20x = 3,182.90 × 1,312.06
  4. Step 4: Simplify right side
    2,306.20x = 4,176,155.77
  5. Step 5: Solve for x
    x = 4,176,155.77/2,306.20
  6. Step 6: Final answer
    x = 1,810.84

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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.