Home / 7,756.50-10,703.40-4,219.62

Finding the Fourth Proportional to 7,756.50, 10,703.40 and 4,219.62

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Solution

The fourth proportional to 7,756.50, 10,703.40 and 4,219.62 is: 5,822.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,756.50 : 10,703.40 = 4,219.62 : x
  2. Step 2: Convert to fraction form
    7,756.50/10,703.40 = 4,219.62/x
  3. Step 3: Cross multiply
    7,756.50x = 10,703.40 × 4,219.62
  4. Step 4: Simplify right side
    7,756.50x = 45,164,280.71
  5. Step 5: Solve for x
    x = 45,164,280.71/7,756.50
  6. Step 6: Final answer
    x = 5,822.77

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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.