Home / 7,257.70-10,890.15-2,875.30

Finding the Fourth Proportional to 7,257.70, 10,890.15 and 2,875.30

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Solution

The fourth proportional to 7,257.70, 10,890.15 and 2,875.30 is: 4,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.70 : 10,890.15 = 2,875.30 : x
  2. Step 2: Convert to fraction form
    7,257.70/10,890.15 = 2,875.30/x
  3. Step 3: Cross multiply
    7,257.70x = 10,890.15 × 2,875.30
  4. Step 4: Simplify right side
    7,257.70x = 31,312,448.30
  5. Step 5: Solve for x
    x = 31,312,448.30/7,257.70
  6. Step 6: Final answer
    x = 4,314.38

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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.