Home / 5,112.99-7,056.63-2,875.77

Finding the Fourth Proportional to 5,112.99, 7,056.63 and 2,875.77

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Solution

The fourth proportional to 5,112.99, 7,056.63 and 2,875.77 is: 3,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.99 : 7,056.63 = 2,875.77 : x
  2. Step 2: Convert to fraction form
    5,112.99/7,056.63 = 2,875.77/x
  3. Step 3: Cross multiply
    5,112.99x = 7,056.63 × 2,875.77
  4. Step 4: Simplify right side
    5,112.99x = 20,293,244.86
  5. Step 5: Solve for x
    x = 20,293,244.86/5,112.99
  6. Step 6: Final answer
    x = 3,968.96

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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.