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Finding the Fourth Proportional to 1,260.74, 1,741.48 and 1,051.60

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Solution

The fourth proportional to 1,260.74, 1,741.48 and 1,051.60 is: 1,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.74 : 1,741.48 = 1,051.60 : x
  2. Step 2: Convert to fraction form
    1,260.74/1,741.48 = 1,051.60/x
  3. Step 3: Cross multiply
    1,260.74x = 1,741.48 × 1,051.60
  4. Step 4: Simplify right side
    1,260.74x = 1,831,340.37
  5. Step 5: Solve for x
    x = 1,831,340.37/1,260.74
  6. Step 6: Final answer
    x = 1,452.59

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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.