Home / 1,787.10-2,465.46-1,088.40

Finding the Fourth Proportional to 1,787.10, 2,465.46 and 1,088.40

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Solution

The fourth proportional to 1,787.10, 2,465.46 and 1,088.40 is: 1,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.10 : 2,465.46 = 1,088.40 : x
  2. Step 2: Convert to fraction form
    1,787.10/2,465.46 = 1,088.40/x
  3. Step 3: Cross multiply
    1,787.10x = 2,465.46 × 1,088.40
  4. Step 4: Simplify right side
    1,787.10x = 2,683,406.66
  5. Step 5: Solve for x
    x = 2,683,406.66/1,787.10
  6. Step 6: Final answer
    x = 1,501.54

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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.