Home / 1,501.25-2,070.68-1,377.32

Finding the Fourth Proportional to 1,501.25, 2,070.68 and 1,377.32

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Solution

The fourth proportional to 1,501.25, 2,070.68 and 1,377.32 is: 1,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.25 : 2,070.68 = 1,377.32 : x
  2. Step 2: Convert to fraction form
    1,501.25/2,070.68 = 1,377.32/x
  3. Step 3: Cross multiply
    1,501.25x = 2,070.68 × 1,377.32
  4. Step 4: Simplify right side
    1,501.25x = 2,851,971.74
  5. Step 5: Solve for x
    x = 2,851,971.74/1,501.25
  6. Step 6: Final answer
    x = 1,899.74

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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.