Home / 7,258.40-10,014.48-4,272.80

Finding the Fourth Proportional to 7,258.40, 10,014.48 and 4,272.80

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Solution

The fourth proportional to 7,258.40, 10,014.48 and 4,272.80 is: 5,895.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.40 : 10,014.48 = 4,272.80 : x
  2. Step 2: Convert to fraction form
    7,258.40/10,014.48 = 4,272.80/x
  3. Step 3: Cross multiply
    7,258.40x = 10,014.48 × 4,272.80
  4. Step 4: Simplify right side
    7,258.40x = 42,789,870.14
  5. Step 5: Solve for x
    x = 42,789,870.14/7,258.40
  6. Step 6: Final answer
    x = 5,895.22

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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.