Home / 2,421.02-3,632.14-777.74

Finding the Fourth Proportional to 2,421.02, 3,632.14 and 777.74

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Solution

The fourth proportional to 2,421.02, 3,632.14 and 777.74 is: 1,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.02 : 3,632.14 = 777.74 : x
  2. Step 2: Convert to fraction form
    2,421.02/3,632.14 = 777.74/x
  3. Step 3: Cross multiply
    2,421.02x = 3,632.14 × 777.74
  4. Step 4: Simplify right side
    2,421.02x = 2,824,843.38
  5. Step 5: Solve for x
    x = 2,824,843.38/2,421.02
  6. Step 6: Final answer
    x = 1,166.80

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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.