Home / 4,918.16-7,377.36-1,220.40

Finding the Fourth Proportional to 4,918.16, 7,377.36 and 1,220.40

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Solution

The fourth proportional to 4,918.16, 7,377.36 and 1,220.40 is: 1,830.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.16 : 7,377.36 = 1,220.40 : x
  2. Step 2: Convert to fraction form
    4,918.16/7,377.36 = 1,220.40/x
  3. Step 3: Cross multiply
    4,918.16x = 7,377.36 × 1,220.40
  4. Step 4: Simplify right side
    4,918.16x = 9,003,330.14
  5. Step 5: Solve for x
    x = 9,003,330.14/4,918.16
  6. Step 6: Final answer
    x = 1,830.63

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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.