Home / 2,424.02-3,636.41-780.35

Finding the Fourth Proportional to 2,424.02, 3,636.41 and 780.35

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Solution

The fourth proportional to 2,424.02, 3,636.41 and 780.35 is: 1,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.02 : 3,636.41 = 780.35 : x
  2. Step 2: Convert to fraction form
    2,424.02/3,636.41 = 780.35/x
  3. Step 3: Cross multiply
    2,424.02x = 3,636.41 × 780.35
  4. Step 4: Simplify right side
    2,424.02x = 2,837,650.46
  5. Step 5: Solve for x
    x = 2,837,650.46/2,424.02
  6. Step 6: Final answer
    x = 1,170.64

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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.