Home / 7,877.63-10,870.28-4,520.37

Finding the Fourth Proportional to 7,877.63, 10,870.28 and 4,520.37

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Solution

The fourth proportional to 7,877.63, 10,870.28 and 4,520.37 is: 6,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.63 : 10,870.28 = 4,520.37 : x
  2. Step 2: Convert to fraction form
    7,877.63/10,870.28 = 4,520.37/x
  3. Step 3: Cross multiply
    7,877.63x = 10,870.28 × 4,520.37
  4. Step 4: Simplify right side
    7,877.63x = 49,137,722.72
  5. Step 5: Solve for x
    x = 49,137,722.72/7,877.63
  6. Step 6: Final answer
    x = 6,237.63

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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.