Home / 1,477.11-2,038.46-847.57

Finding the Fourth Proportional to 1,477.11, 2,038.46 and 847.57

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Solution

The fourth proportional to 1,477.11, 2,038.46 and 847.57 is: 1,169.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.11 : 2,038.46 = 847.57 : x
  2. Step 2: Convert to fraction form
    1,477.11/2,038.46 = 847.57/x
  3. Step 3: Cross multiply
    1,477.11x = 2,038.46 × 847.57
  4. Step 4: Simplify right side
    1,477.11x = 1,727,737.54
  5. Step 5: Solve for x
    x = 1,727,737.54/1,477.11
  6. Step 6: Final answer
    x = 1,169.67

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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.