Home / 1,875.87-2,587.28-1,435.23

Finding the Fourth Proportional to 1,875.87, 2,587.28 and 1,435.23

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Solution

The fourth proportional to 1,875.87, 2,587.28 and 1,435.23 is: 1,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.87 : 2,587.28 = 1,435.23 : x
  2. Step 2: Convert to fraction form
    1,875.87/2,587.28 = 1,435.23/x
  3. Step 3: Cross multiply
    1,875.87x = 2,587.28 × 1,435.23
  4. Step 4: Simplify right side
    1,875.87x = 3,713,334.70
  5. Step 5: Solve for x
    x = 3,713,334.70/1,875.87
  6. Step 6: Final answer
    x = 1,979.53

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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.