Home / 3,116.32-4,300.51-1,790.11

Finding the Fourth Proportional to 3,116.32, 4,300.51 and 1,790.11

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Solution

The fourth proportional to 3,116.32, 4,300.51 and 1,790.11 is: 2,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.32 : 4,300.51 = 1,790.11 : x
  2. Step 2: Convert to fraction form
    3,116.32/4,300.51 = 1,790.11/x
  3. Step 3: Cross multiply
    3,116.32x = 4,300.51 × 1,790.11
  4. Step 4: Simplify right side
    3,116.32x = 7,698,385.96
  5. Step 5: Solve for x
    x = 7,698,385.96/3,116.32
  6. Step 6: Final answer
    x = 2,470.35

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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.