Home / 7,127.76-10,692.48-2,970.58

Finding the Fourth Proportional to 7,127.76, 10,692.48 and 2,970.58

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Solution

The fourth proportional to 7,127.76, 10,692.48 and 2,970.58 is: 4,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.76 : 10,692.48 = 2,970.58 : x
  2. Step 2: Convert to fraction form
    7,127.76/10,692.48 = 2,970.58/x
  3. Step 3: Cross multiply
    7,127.76x = 10,692.48 × 2,970.58
  4. Step 4: Simplify right side
    7,127.76x = 31,762,867.24
  5. Step 5: Solve for x
    x = 31,762,867.24/7,127.76
  6. Step 6: Final answer
    x = 4,456.22

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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.