Home / 1,660.30-2,290.08-1,030.16

Finding the Fourth Proportional to 1,660.30, 2,290.08 and 1,030.16

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Solution

The fourth proportional to 1,660.30, 2,290.08 and 1,030.16 is: 1,420.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.30 : 2,290.08 = 1,030.16 : x
  2. Step 2: Convert to fraction form
    1,660.30/2,290.08 = 1,030.16/x
  3. Step 3: Cross multiply
    1,660.30x = 2,290.08 × 1,030.16
  4. Step 4: Simplify right side
    1,660.30x = 2,359,148.81
  5. Step 5: Solve for x
    x = 2,359,148.81/1,660.30
  6. Step 6: Final answer
    x = 1,420.92

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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.