Home / 2,210.18-3,050.13-1,215.55

Finding the Fourth Proportional to 2,210.18, 3,050.13 and 1,215.55

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Solution

The fourth proportional to 2,210.18, 3,050.13 and 1,215.55 is: 1,677.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.18 : 3,050.13 = 1,215.55 : x
  2. Step 2: Convert to fraction form
    2,210.18/3,050.13 = 1,215.55/x
  3. Step 3: Cross multiply
    2,210.18x = 3,050.13 × 1,215.55
  4. Step 4: Simplify right side
    2,210.18x = 3,707,570.27
  5. Step 5: Solve for x
    x = 3,707,570.27/2,210.18
  6. Step 6: Final answer
    x = 1,677.50

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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.