Home / 1,059.29-1,461.01-928.07

Finding the Fourth Proportional to 1,059.29, 1,461.01 and 928.07

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Solution

The fourth proportional to 1,059.29, 1,461.01 and 928.07 is: 1,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.29 : 1,461.01 = 928.07 : x
  2. Step 2: Convert to fraction form
    1,059.29/1,461.01 = 928.07/x
  3. Step 3: Cross multiply
    1,059.29x = 1,461.01 × 928.07
  4. Step 4: Simplify right side
    1,059.29x = 1,355,912.25
  5. Step 5: Solve for x
    x = 1,355,912.25/1,059.29
  6. Step 6: Final answer
    x = 1,280.03

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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.