Home / 3,531.75-5,299.65-1,312.13

Finding the Fourth Proportional to 3,531.75, 5,299.65 and 1,312.13

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Solution

The fourth proportional to 3,531.75, 5,299.65 and 1,312.13 is: 1,968.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.75 : 5,299.65 = 1,312.13 : x
  2. Step 2: Convert to fraction form
    3,531.75/5,299.65 = 1,312.13/x
  3. Step 3: Cross multiply
    3,531.75x = 5,299.65 × 1,312.13
  4. Step 4: Simplify right side
    3,531.75x = 6,953,803.26
  5. Step 5: Solve for x
    x = 6,953,803.26/3,531.75
  6. Step 6: Final answer
    x = 1,968.94

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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.