Home / 1,618.08-2,428.53-926.13

Finding the Fourth Proportional to 1,618.08, 2,428.53 and 926.13

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Solution

The fourth proportional to 1,618.08, 2,428.53 and 926.13 is: 1,390.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.08 : 2,428.53 = 926.13 : x
  2. Step 2: Convert to fraction form
    1,618.08/2,428.53 = 926.13/x
  3. Step 3: Cross multiply
    1,618.08x = 2,428.53 × 926.13
  4. Step 4: Simplify right side
    1,618.08x = 2,249,134.49
  5. Step 5: Solve for x
    x = 2,249,134.49/1,618.08
  6. Step 6: Final answer
    x = 1,390.00

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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.