Home / 5,153.15-7,113-3,137.67

Finding the Fourth Proportional to 5,153.15, 7,113 and 3,137.67

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Solution

The fourth proportional to 5,153.15, 7,113 and 3,137.67 is: 4,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.15 : 7,113 = 3,137.67 : x
  2. Step 2: Convert to fraction form
    5,153.15/7,113 = 3,137.67/x
  3. Step 3: Cross multiply
    5,153.15x = 7,113 × 3,137.67
  4. Step 4: Simplify right side
    5,153.15x = 22,318,246.71
  5. Step 5: Solve for x
    x = 22,318,246.71/5,153.15
  6. Step 6: Final answer
    x = 4,331.00

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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.