Home / 1,124.03-1,685.81-302.11

Finding the Fourth Proportional to 1,124.03, 1,685.81 and 302.11

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Solution

The fourth proportional to 1,124.03, 1,685.81 and 302.11 is: 453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.03 : 1,685.81 = 302.11 : x
  2. Step 2: Convert to fraction form
    1,124.03/1,685.81 = 302.11/x
  3. Step 3: Cross multiply
    1,124.03x = 1,685.81 × 302.11
  4. Step 4: Simplify right side
    1,124.03x = 509,296.60
  5. Step 5: Solve for x
    x = 509,296.60/1,124.03
  6. Step 6: Final answer
    x = 453.10

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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.