Home / 7,881.32-10,875.78-4,343.91

Finding the Fourth Proportional to 7,881.32, 10,875.78 and 4,343.91

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Solution

The fourth proportional to 7,881.32, 10,875.78 and 4,343.91 is: 5,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.32 : 10,875.78 = 4,343.91 : x
  2. Step 2: Convert to fraction form
    7,881.32/10,875.78 = 4,343.91/x
  3. Step 3: Cross multiply
    7,881.32x = 10,875.78 × 4,343.91
  4. Step 4: Simplify right side
    7,881.32x = 47,243,409.50
  5. Step 5: Solve for x
    x = 47,243,409.50/7,881.32
  6. Step 6: Final answer
    x = 5,994.36

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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.