Home / 3,124.45-4,312.20-1,798.48

Finding the Fourth Proportional to 3,124.45, 4,312.20 and 1,798.48

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Solution

The fourth proportional to 3,124.45, 4,312.20 and 1,798.48 is: 2,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.45 : 4,312.20 = 1,798.48 : x
  2. Step 2: Convert to fraction form
    3,124.45/4,312.20 = 1,798.48/x
  3. Step 3: Cross multiply
    3,124.45x = 4,312.20 × 1,798.48
  4. Step 4: Simplify right side
    3,124.45x = 7,755,405.46
  5. Step 5: Solve for x
    x = 7,755,405.46/3,124.45
  6. Step 6: Final answer
    x = 2,482.17

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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.