Home / 3,090.89-4,636.35-1,038.89

Finding the Fourth Proportional to 3,090.89, 4,636.35 and 1,038.89

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Solution

The fourth proportional to 3,090.89, 4,636.35 and 1,038.89 is: 1,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.89 : 4,636.35 = 1,038.89 : x
  2. Step 2: Convert to fraction form
    3,090.89/4,636.35 = 1,038.89/x
  3. Step 3: Cross multiply
    3,090.89x = 4,636.35 × 1,038.89
  4. Step 4: Simplify right side
    3,090.89x = 4,816,657.65
  5. Step 5: Solve for x
    x = 4,816,657.65/3,090.89
  6. Step 6: Final answer
    x = 1,558.34

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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.