Home / 3,510.40-4,830.72-3,112.96

Finding the Fourth Proportional to 3,510.40, 4,830.72 and 3,112.96

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Solution

The fourth proportional to 3,510.40, 4,830.72 and 3,112.96 is: 4,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.40 : 4,830.72 = 3,112.96 : x
  2. Step 2: Convert to fraction form
    3,510.40/4,830.72 = 3,112.96/x
  3. Step 3: Cross multiply
    3,510.40x = 4,830.72 × 3,112.96
  4. Step 4: Simplify right side
    3,510.40x = 15,037,838.13
  5. Step 5: Solve for x
    x = 15,037,838.13/3,510.40
  6. Step 6: Final answer
    x = 4,283.80

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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.