Home / 2,715.34-3,746.91-2,157.16

Finding the Fourth Proportional to 2,715.34, 3,746.91 and 2,157.16

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Solution

The fourth proportional to 2,715.34, 3,746.91 and 2,157.16 is: 2,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.34 : 3,746.91 = 2,157.16 : x
  2. Step 2: Convert to fraction form
    2,715.34/3,746.91 = 2,157.16/x
  3. Step 3: Cross multiply
    2,715.34x = 3,746.91 × 2,157.16
  4. Step 4: Simplify right side
    2,715.34x = 8,082,684.38
  5. Step 5: Solve for x
    x = 8,082,684.38/2,715.34
  6. Step 6: Final answer
    x = 2,976.67

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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.