Home / 2,355.12-3,249.90-1,307.16

Finding the Fourth Proportional to 2,355.12, 3,249.90 and 1,307.16

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Solution

The fourth proportional to 2,355.12, 3,249.90 and 1,307.16 is: 1,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.12 : 3,249.90 = 1,307.16 : x
  2. Step 2: Convert to fraction form
    2,355.12/3,249.90 = 1,307.16/x
  3. Step 3: Cross multiply
    2,355.12x = 3,249.90 × 1,307.16
  4. Step 4: Simplify right side
    2,355.12x = 4,248,139.28
  5. Step 5: Solve for x
    x = 4,248,139.28/2,355.12
  6. Step 6: Final answer
    x = 1,803.79

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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.