Home / 1,477.36-2,216.60-747.48

Finding the Fourth Proportional to 1,477.36, 2,216.60 and 747.48

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Solution

The fourth proportional to 1,477.36, 2,216.60 and 747.48 is: 1,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.36 : 2,216.60 = 747.48 : x
  2. Step 2: Convert to fraction form
    1,477.36/2,216.60 = 747.48/x
  3. Step 3: Cross multiply
    1,477.36x = 2,216.60 × 747.48
  4. Step 4: Simplify right side
    1,477.36x = 1,656,864.17
  5. Step 5: Solve for x
    x = 1,656,864.17/1,477.36
  6. Step 6: Final answer
    x = 1,121.50

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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.