Home / 2,528.96-3,490.02-1,409.99

Finding the Fourth Proportional to 2,528.96, 3,490.02 and 1,409.99

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Solution

The fourth proportional to 2,528.96, 3,490.02 and 1,409.99 is: 1,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.96 : 3,490.02 = 1,409.99 : x
  2. Step 2: Convert to fraction form
    2,528.96/3,490.02 = 1,409.99/x
  3. Step 3: Cross multiply
    2,528.96x = 3,490.02 × 1,409.99
  4. Step 4: Simplify right side
    2,528.96x = 4,920,875.85
  5. Step 5: Solve for x
    x = 4,920,875.85/2,528.96
  6. Step 6: Final answer
    x = 1,945.81

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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.