Home / 6,875.78-10,317.63-2,980.58

Finding the Fourth Proportional to 6,875.78, 10,317.63 and 2,980.58

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Solution

The fourth proportional to 6,875.78, 10,317.63 and 2,980.58 is: 4,472.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.78 : 10,317.63 = 2,980.58 : x
  2. Step 2: Convert to fraction form
    6,875.78/10,317.63 = 2,980.58/x
  3. Step 3: Cross multiply
    6,875.78x = 10,317.63 × 2,980.58
  4. Step 4: Simplify right side
    6,875.78x = 30,752,521.63
  5. Step 5: Solve for x
    x = 30,752,521.63/6,875.78
  6. Step 6: Final answer
    x = 4,472.59

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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.