Home / 2,330.10-3,215.43-1,478.39

Finding the Fourth Proportional to 2,330.10, 3,215.43 and 1,478.39

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Solution

The fourth proportional to 2,330.10, 3,215.43 and 1,478.39 is: 2,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.10 : 3,215.43 = 1,478.39 : x
  2. Step 2: Convert to fraction form
    2,330.10/3,215.43 = 1,478.39/x
  3. Step 3: Cross multiply
    2,330.10x = 3,215.43 × 1,478.39
  4. Step 4: Simplify right side
    2,330.10x = 4,753,643.48
  5. Step 5: Solve for x
    x = 4,753,643.48/2,330.10
  6. Step 6: Final answer
    x = 2,040.10

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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.