Home / 1,656.18-2,285.01-1,191.06

Finding the Fourth Proportional to 1,656.18, 2,285.01 and 1,191.06

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Solution

The fourth proportional to 1,656.18, 2,285.01 and 1,191.06 is: 1,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.18 : 2,285.01 = 1,191.06 : x
  2. Step 2: Convert to fraction form
    1,656.18/2,285.01 = 1,191.06/x
  3. Step 3: Cross multiply
    1,656.18x = 2,285.01 × 1,191.06
  4. Step 4: Simplify right side
    1,656.18x = 2,721,584.01
  5. Step 5: Solve for x
    x = 2,721,584.01/1,656.18
  6. Step 6: Final answer
    x = 1,643.29

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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.