Home / 2,088.18-3,130.92-1,210.86

Finding the Fourth Proportional to 2,088.18, 3,130.92 and 1,210.86

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Solution

The fourth proportional to 2,088.18, 3,130.92 and 1,210.86 is: 1,815.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.18 : 3,130.92 = 1,210.86 : x
  2. Step 2: Convert to fraction form
    2,088.18/3,130.92 = 1,210.86/x
  3. Step 3: Cross multiply
    2,088.18x = 3,130.92 × 1,210.86
  4. Step 4: Simplify right side
    2,088.18x = 3,791,105.79
  5. Step 5: Solve for x
    x = 3,791,105.79/2,088.18
  6. Step 6: Final answer
    x = 1,815.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.