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Finding the Fourth Proportional to 1,775.69, 2,448.54 and 1,244.40

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Solution

The fourth proportional to 1,775.69, 2,448.54 and 1,244.40 is: 1,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.69 : 2,448.54 = 1,244.40 : x
  2. Step 2: Convert to fraction form
    1,775.69/2,448.54 = 1,244.40/x
  3. Step 3: Cross multiply
    1,775.69x = 2,448.54 × 1,244.40
  4. Step 4: Simplify right side
    1,775.69x = 3,046,963.18
  5. Step 5: Solve for x
    x = 3,046,963.18/1,775.69
  6. Step 6: Final answer
    x = 1,715.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.