Home / 2,585.49-3,565.59-1,688.42

Finding the Fourth Proportional to 2,585.49, 3,565.59 and 1,688.42

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Solution

The fourth proportional to 2,585.49, 3,565.59 and 1,688.42 is: 2,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.49 : 3,565.59 = 1,688.42 : x
  2. Step 2: Convert to fraction form
    2,585.49/3,565.59 = 1,688.42/x
  3. Step 3: Cross multiply
    2,585.49x = 3,565.59 × 1,688.42
  4. Step 4: Simplify right side
    2,585.49x = 6,020,195.64
  5. Step 5: Solve for x
    x = 6,020,195.64/2,585.49
  6. Step 6: Final answer
    x = 2,328.45

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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.