Home / 4,692.60-7,039.02-1,405.80

Finding the Fourth Proportional to 4,692.60, 7,039.02 and 1,405.80

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Solution

The fourth proportional to 4,692.60, 7,039.02 and 1,405.80 is: 2,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,692.60 : 7,039.02 = 1,405.80 : x
  2. Step 2: Convert to fraction form
    4,692.60/7,039.02 = 1,405.80/x
  3. Step 3: Cross multiply
    4,692.60x = 7,039.02 × 1,405.80
  4. Step 4: Simplify right side
    4,692.60x = 9,895,454.32
  5. Step 5: Solve for x
    x = 9,895,454.32/4,692.60
  6. Step 6: Final answer
    x = 2,108.74

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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.