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Finding the Fourth Proportional to 5,258.04, 7,886.80 and 1,970.88

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Solution

The fourth proportional to 5,258.04, 7,886.80 and 1,970.88 is: 2,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258.04 : 7,886.80 = 1,970.88 : x
  2. Step 2: Convert to fraction form
    5,258.04/7,886.80 = 1,970.88/x
  3. Step 3: Cross multiply
    5,258.04x = 7,886.80 × 1,970.88
  4. Step 4: Simplify right side
    5,258.04x = 15,543,936.38
  5. Step 5: Solve for x
    x = 15,543,936.38/5,258.04
  6. Step 6: Final answer
    x = 2,956.22

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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.