Home / 2,885.40-4,320.81-1,585.35

Finding the Fourth Proportional to 2,885.40, 4,320.81 and 1,585.35

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Solution

The fourth proportional to 2,885.40, 4,320.81 and 1,585.35 is: 2,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.40 : 4,320.81 = 1,585.35 : x
  2. Step 2: Convert to fraction form
    2,885.40/4,320.81 = 1,585.35/x
  3. Step 3: Cross multiply
    2,885.40x = 4,320.81 × 1,585.35
  4. Step 4: Simplify right side
    2,885.40x = 6,849,996.13
  5. Step 5: Solve for x
    x = 6,849,996.13/2,885.40
  6. Step 6: Final answer
    x = 2,374.02

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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.