Home / 7,540.64-11,312.12-2,345.28

Finding the Fourth Proportional to 7,540.64, 11,312.12 and 2,345.28

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Solution

The fourth proportional to 7,540.64, 11,312.12 and 2,345.28 is: 3,518.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.64 : 11,312.12 = 2,345.28 : x
  2. Step 2: Convert to fraction form
    7,540.64/11,312.12 = 2,345.28/x
  3. Step 3: Cross multiply
    7,540.64x = 11,312.12 × 2,345.28
  4. Step 4: Simplify right side
    7,540.64x = 26,530,088.79
  5. Step 5: Solve for x
    x = 26,530,088.79/7,540.64
  6. Step 6: Final answer
    x = 3,518.28

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1.5x scale

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.