Home / 1,925.02-2,887.52-770.77

Finding the Fourth Proportional to 1,925.02, 2,887.52 and 770.77

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Solution

The fourth proportional to 1,925.02, 2,887.52 and 770.77 is: 1,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,925.02 : 2,887.52 = 770.77 : x
  2. Step 2: Convert to fraction form
    1,925.02/2,887.52 = 770.77/x
  3. Step 3: Cross multiply
    1,925.02x = 2,887.52 × 770.77
  4. Step 4: Simplify right side
    1,925.02x = 2,225,603.81
  5. Step 5: Solve for x
    x = 2,225,603.81/1,925.02
  6. Step 6: Final answer
    x = 1,156.15

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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.