Home / 1,417.08-2,113.58-1,328.88

Finding the Fourth Proportional to 1,417.08, 2,113.58 and 1,328.88

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Solution

The fourth proportional to 1,417.08, 2,113.58 and 1,328.88 is: 1,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.08 : 2,113.58 = 1,328.88 : x
  2. Step 2: Convert to fraction form
    1,417.08/2,113.58 = 1,328.88/x
  3. Step 3: Cross multiply
    1,417.08x = 2,113.58 × 1,328.88
  4. Step 4: Simplify right side
    1,417.08x = 2,808,694.19
  5. Step 5: Solve for x
    x = 2,808,694.19/1,417.08
  6. Step 6: Final answer
    x = 1,982.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.