Home / 1,551.02-2,137.95-1,520.30

Finding the Fourth Proportional to 1,551.02, 2,137.95 and 1,520.30

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Solution

The fourth proportional to 1,551.02, 2,137.95 and 1,520.30 is: 2,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.02 : 2,137.95 = 1,520.30 : x
  2. Step 2: Convert to fraction form
    1,551.02/2,137.95 = 1,520.30/x
  3. Step 3: Cross multiply
    1,551.02x = 2,137.95 × 1,520.30
  4. Step 4: Simplify right side
    1,551.02x = 3,250,325.39
  5. Step 5: Solve for x
    x = 3,250,325.39/1,551.02
  6. Step 6: Final answer
    x = 2,095.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.