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Finding the Fourth Proportional to 5,303.88, 7,319.82 and 2,946.78

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Solution

The fourth proportional to 5,303.88, 7,319.82 and 2,946.78 is: 4,066.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.88 : 7,319.82 = 2,946.78 : x
  2. Step 2: Convert to fraction form
    5,303.88/7,319.82 = 2,946.78/x
  3. Step 3: Cross multiply
    5,303.88x = 7,319.82 × 2,946.78
  4. Step 4: Simplify right side
    5,303.88x = 21,569,899.18
  5. Step 5: Solve for x
    x = 21,569,899.18/5,303.88
  6. Step 6: Final answer
    x = 4,066.82

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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.