Home / 5,475.48-7,557.12-3,117.48

Finding the Fourth Proportional to 5,475.48, 7,557.12 and 3,117.48

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Solution

The fourth proportional to 5,475.48, 7,557.12 and 3,117.48 is: 4,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.48 : 7,557.12 = 3,117.48 : x
  2. Step 2: Convert to fraction form
    5,475.48/7,557.12 = 3,117.48/x
  3. Step 3: Cross multiply
    5,475.48x = 7,557.12 × 3,117.48
  4. Step 4: Simplify right side
    5,475.48x = 23,559,170.46
  5. Step 5: Solve for x
    x = 23,559,170.46/5,475.48
  6. Step 6: Final answer
    x = 4,302.67

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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.