Home / 2,210.31-3,050.15-1,215.53

Finding the Fourth Proportional to 2,210.31, 3,050.15 and 1,215.53

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Solution

The fourth proportional to 2,210.31, 3,050.15 and 1,215.53 is: 1,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.31 : 3,050.15 = 1,215.53 : x
  2. Step 2: Convert to fraction form
    2,210.31/3,050.15 = 1,215.53/x
  3. Step 3: Cross multiply
    2,210.31x = 3,050.15 × 1,215.53
  4. Step 4: Simplify right side
    2,210.31x = 3,707,542.75
  5. Step 5: Solve for x
    x = 3,707,542.75/2,210.31
  6. Step 6: Final answer
    x = 1,677.39

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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.