Home / 1,653.90-2,280.87-1,322.34

Finding the Fourth Proportional to 1,653.90, 2,280.87 and 1,322.34

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Solution

The fourth proportional to 1,653.90, 2,280.87 and 1,322.34 is: 1,823.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653.90 : 2,280.87 = 1,322.34 : x
  2. Step 2: Convert to fraction form
    1,653.90/2,280.87 = 1,322.34/x
  3. Step 3: Cross multiply
    1,653.90x = 2,280.87 × 1,322.34
  4. Step 4: Simplify right side
    1,653.90x = 3,016,085.64
  5. Step 5: Solve for x
    x = 3,016,085.64/1,653.90
  6. Step 6: Final answer
    x = 1,823.62

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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.