Home / 5,260.13-7,258.74-2,870.05

Finding the Fourth Proportional to 5,260.13, 7,258.74 and 2,870.05

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Solution

The fourth proportional to 5,260.13, 7,258.74 and 2,870.05 is: 3,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.13 : 7,258.74 = 2,870.05 : x
  2. Step 2: Convert to fraction form
    5,260.13/7,258.74 = 2,870.05/x
  3. Step 3: Cross multiply
    5,260.13x = 7,258.74 × 2,870.05
  4. Step 4: Simplify right side
    5,260.13x = 20,832,946.74
  5. Step 5: Solve for x
    x = 20,832,946.74/5,260.13
  6. Step 6: Final answer
    x = 3,960.54

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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.