Home / 3,106.10-4,285.15-1,761.43

Finding the Fourth Proportional to 3,106.10, 4,285.15 and 1,761.43

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Solution

The fourth proportional to 3,106.10, 4,285.15 and 1,761.43 is: 2,430.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.10 : 4,285.15 = 1,761.43 : x
  2. Step 2: Convert to fraction form
    3,106.10/4,285.15 = 1,761.43/x
  3. Step 3: Cross multiply
    3,106.10x = 4,285.15 × 1,761.43
  4. Step 4: Simplify right side
    3,106.10x = 7,547,970.34
  5. Step 5: Solve for x
    x = 7,547,970.34/3,106.10
  6. Step 6: Final answer
    x = 2,430.05

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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.