Home / 3,111.18-4,666.41-802.86

Finding the Fourth Proportional to 3,111.18, 4,666.41 and 802.86

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Solution

The fourth proportional to 3,111.18, 4,666.41 and 802.86 is: 1,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.18 : 4,666.41 = 802.86 : x
  2. Step 2: Convert to fraction form
    3,111.18/4,666.41 = 802.86/x
  3. Step 3: Cross multiply
    3,111.18x = 4,666.41 × 802.86
  4. Step 4: Simplify right side
    3,111.18x = 3,746,473.93
  5. Step 5: Solve for x
    x = 3,746,473.93/3,111.18
  6. Step 6: Final answer
    x = 1,204.20

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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.