Home / 1,570.75-2,357.64-1,155.55

Finding the Fourth Proportional to 1,570.75, 2,357.64 and 1,155.55

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Solution

The fourth proportional to 1,570.75, 2,357.64 and 1,155.55 is: 1,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570.75 : 2,357.64 = 1,155.55 : x
  2. Step 2: Convert to fraction form
    1,570.75/2,357.64 = 1,155.55/x
  3. Step 3: Cross multiply
    1,570.75x = 2,357.64 × 1,155.55
  4. Step 4: Simplify right side
    1,570.75x = 2,724,370.90
  5. Step 5: Solve for x
    x = 2,724,370.90/1,570.75
  6. Step 6: Final answer
    x = 1,734.44

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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.