Home / 1,574.74-2,170.61-1,070.45

Finding the Fourth Proportional to 1,574.74, 2,170.61 and 1,070.45

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Solution

The fourth proportional to 1,574.74, 2,170.61 and 1,070.45 is: 1,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.74 : 2,170.61 = 1,070.45 : x
  2. Step 2: Convert to fraction form
    1,574.74/2,170.61 = 1,070.45/x
  3. Step 3: Cross multiply
    1,574.74x = 2,170.61 × 1,070.45
  4. Step 4: Simplify right side
    1,574.74x = 2,323,531.44
  5. Step 5: Solve for x
    x = 2,323,531.44/1,574.74
  6. Step 6: Final answer
    x = 1,475.50

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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.