Home / 1,905.62-2,858.40-607.07

Finding the Fourth Proportional to 1,905.62, 2,858.40 and 607.07

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Solution

The fourth proportional to 1,905.62, 2,858.40 and 607.07 is: 910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.62 : 2,858.40 = 607.07 : x
  2. Step 2: Convert to fraction form
    1,905.62/2,858.40 = 607.07/x
  3. Step 3: Cross multiply
    1,905.62x = 2,858.40 × 607.07
  4. Step 4: Simplify right side
    1,905.62x = 1,735,248.89
  5. Step 5: Solve for x
    x = 1,735,248.89/1,905.62
  6. Step 6: Final answer
    x = 910.60

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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.