Home / 1,155.08-1,733.39-424.67

Finding the Fourth Proportional to 1,155.08, 1,733.39 and 424.67

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Solution

The fourth proportional to 1,155.08, 1,733.39 and 424.67 is: 637.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.08 : 1,733.39 = 424.67 : x
  2. Step 2: Convert to fraction form
    1,155.08/1,733.39 = 424.67/x
  3. Step 3: Cross multiply
    1,155.08x = 1,733.39 × 424.67
  4. Step 4: Simplify right side
    1,155.08x = 736,109.53
  5. Step 5: Solve for x
    x = 736,109.53/1,155.08
  6. Step 6: Final answer
    x = 637.28

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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.