Home / 1,148.16-1,722.29-368.19

Finding the Fourth Proportional to 1,148.16, 1,722.29 and 368.19

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Solution

The fourth proportional to 1,148.16, 1,722.29 and 368.19 is: 552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.16 : 1,722.29 = 368.19 : x
  2. Step 2: Convert to fraction form
    1,148.16/1,722.29 = 368.19/x
  3. Step 3: Cross multiply
    1,148.16x = 1,722.29 × 368.19
  4. Step 4: Simplify right side
    1,148.16x = 634,128.11
  5. Step 5: Solve for x
    x = 634,128.11/1,148.16
  6. Step 6: Final answer
    x = 552.30

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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.