Home / 3,505.49-5,256.69-1,312.68

Finding the Fourth Proportional to 3,505.49, 5,256.69 and 1,312.68

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Solution

The fourth proportional to 3,505.49, 5,256.69 and 1,312.68 is: 1,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.49 : 5,256.69 = 1,312.68 : x
  2. Step 2: Convert to fraction form
    3,505.49/5,256.69 = 1,312.68/x
  3. Step 3: Cross multiply
    3,505.49x = 5,256.69 × 1,312.68
  4. Step 4: Simplify right side
    3,505.49x = 6,900,332.12
  5. Step 5: Solve for x
    x = 6,900,332.12/3,505.49
  6. Step 6: Final answer
    x = 1,968.44

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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.