Home / 1,299.36-1,948.20-650.52

Finding the Fourth Proportional to 1,299.36, 1,948.20 and 650.52

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Solution

The fourth proportional to 1,299.36, 1,948.20 and 650.52 is: 975.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.36 : 1,948.20 = 650.52 : x
  2. Step 2: Convert to fraction form
    1,299.36/1,948.20 = 650.52/x
  3. Step 3: Cross multiply
    1,299.36x = 1,948.20 × 650.52
  4. Step 4: Simplify right side
    1,299.36x = 1,267,343.06
  5. Step 5: Solve for x
    x = 1,267,343.06/1,299.36
  6. Step 6: Final answer
    x = 975.36

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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.