Home / 1,875.96-2,589.36-1,130.40

Finding the Fourth Proportional to 1,875.96, 2,589.36 and 1,130.40

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Solution

The fourth proportional to 1,875.96, 2,589.36 and 1,130.40 is: 1,560.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.96 : 2,589.36 = 1,130.40 : x
  2. Step 2: Convert to fraction form
    1,875.96/2,589.36 = 1,130.40/x
  3. Step 3: Cross multiply
    1,875.96x = 2,589.36 × 1,130.40
  4. Step 4: Simplify right side
    1,875.96x = 2,927,012.54
  5. Step 5: Solve for x
    x = 2,927,012.54/1,875.96
  6. Step 6: Final answer
    x = 1,560.27

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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.