Home / 3,505.53-5,256.76-1,312.72

Finding the Fourth Proportional to 3,505.53, 5,256.76 and 1,312.72

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Solution

The fourth proportional to 3,505.53, 5,256.76 and 1,312.72 is: 1,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.53 : 5,256.76 = 1,312.72 : x
  2. Step 2: Convert to fraction form
    3,505.53/5,256.76 = 1,312.72/x
  3. Step 3: Cross multiply
    3,505.53x = 5,256.76 × 1,312.72
  4. Step 4: Simplify right side
    3,505.53x = 6,900,676.98
  5. Step 5: Solve for x
    x = 6,900,676.98/3,505.53
  6. Step 6: Final answer
    x = 1,968.51

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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.