Home / 1,630.02-2,445.02-705.40

Finding the Fourth Proportional to 1,630.02, 2,445.02 and 705.40

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Solution

The fourth proportional to 1,630.02, 2,445.02 and 705.40 is: 1,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.02 : 2,445.02 = 705.40 : x
  2. Step 2: Convert to fraction form
    1,630.02/2,445.02 = 705.40/x
  3. Step 3: Cross multiply
    1,630.02x = 2,445.02 × 705.40
  4. Step 4: Simplify right side
    1,630.02x = 1,724,717.11
  5. Step 5: Solve for x
    x = 1,724,717.11/1,630.02
  6. Step 6: Final answer
    x = 1,058.10

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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.