Home / 7,275.92-10,915.70-2,345.45

Finding the Fourth Proportional to 7,275.92, 10,915.70 and 2,345.45

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Solution

The fourth proportional to 7,275.92, 10,915.70 and 2,345.45 is: 3,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.92 : 10,915.70 = 2,345.45 : x
  2. Step 2: Convert to fraction form
    7,275.92/10,915.70 = 2,345.45/x
  3. Step 3: Cross multiply
    7,275.92x = 10,915.70 × 2,345.45
  4. Step 4: Simplify right side
    7,275.92x = 25,602,162.26
  5. Step 5: Solve for x
    x = 25,602,162.26/7,275.92
  6. Step 6: Final answer
    x = 3,518.75

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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.