Home / 1,090.04-1,503.58-670.60

Finding the Fourth Proportional to 1,090.04, 1,503.58 and 670.60

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Solution

The fourth proportional to 1,090.04, 1,503.58 and 670.60 is: 925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.04 : 1,503.58 = 670.60 : x
  2. Step 2: Convert to fraction form
    1,090.04/1,503.58 = 670.60/x
  3. Step 3: Cross multiply
    1,090.04x = 1,503.58 × 670.60
  4. Step 4: Simplify right side
    1,090.04x = 1,008,300.75
  5. Step 5: Solve for x
    x = 1,008,300.75/1,090.04
  6. Step 6: Final answer
    x = 925.01

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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.