Home / 3,520.02-5,280.83-1,875.70

Finding the Fourth Proportional to 3,520.02, 5,280.83 and 1,875.70

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Solution

The fourth proportional to 3,520.02, 5,280.83 and 1,875.70 is: 2,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.02 : 5,280.83 = 1,875.70 : x
  2. Step 2: Convert to fraction form
    3,520.02/5,280.83 = 1,875.70/x
  3. Step 3: Cross multiply
    3,520.02x = 5,280.83 × 1,875.70
  4. Step 4: Simplify right side
    3,520.02x = 9,905,252.83
  5. Step 5: Solve for x
    x = 9,905,252.83/3,520.02
  6. Step 6: Final answer
    x = 2,813.98

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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.