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Finding the Fourth Proportional to 1,037.23, 1,430.75 and 664.08

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Solution

The fourth proportional to 1,037.23, 1,430.75 and 664.08 is: 916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.23 : 1,430.75 = 664.08 : x
  2. Step 2: Convert to fraction form
    1,037.23/1,430.75 = 664.08/x
  3. Step 3: Cross multiply
    1,037.23x = 1,430.75 × 664.08
  4. Step 4: Simplify right side
    1,037.23x = 950,132.46
  5. Step 5: Solve for x
    x = 950,132.46/1,037.23
  6. Step 6: Final answer
    x = 916.03

Related Problems

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Double scale
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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.